Optical system with optical frequency discriminator
US6741393B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Jun 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical system includes an optical frequency discriminator having a light source of an optical input beam, and an optical bandpass filter having a bandpass filter range and the optical input beam incident thereon at a bandpass-filter angle of incidence and may be desirably be adjusted. The optical bandpass filter transmits a first transmitted beam of a bandpass-filter frequency band and reflects a first reflected beam. An optical second filter has an optical edge in the bandpass range of the bandpass filter and the first reflected beam incident thereon at a second-filter angle of incidence. The optical second filter transmits a second transmitted beam band and reflects a second reflected beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.